# [http://www.ncert.nic.in/ncerts/textbook/textbook.htm?hemh1=4-16 Karnataka Textbook Class VIII - Mathematics - Chapter - 15 - Quadrilaterals ==> NCERT Textbook Class - VIII - Chapter - 4 - Practical Geometry] | # [http://www.ncert.nic.in/ncerts/textbook/textbook.htm?hemh1=4-16 Karnataka Textbook Class VIII - Mathematics - Chapter - 15 - Quadrilaterals ==> NCERT Textbook Class - VIII - Chapter - 4 - Practical Geometry] |